Stanchion.



Patented May 6 I902 E. PRESCOTT.

S T A N C H l 0 N (Application filed. May 17, 1900.)

(No Model.)

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UNITED STATES PATENT ()FFICE.

EDWIN PRESCOTT, OF ARLINGTON, MASSACHUSETTS.

STANCHl-ON.

SPECIFIGATION forming part of Letters Patent No. 699,411, dated May 6,1902.

Application filed May 17, 1900. Serial No. 17,025. (No model.)

To all whom it may concern.-

Be it known that I, EDWIN PRESCOTT, a citizen of the United States,residing at Arlington, in the county of Middlesex and State ofMassachusetts, have invented an Improvement in Stanchions, of which thefollowing description, in connection with the accompanying drawings, isa specification, like characters on the drawings representing likeparts.

This invention is intended to be an improvement on the stanchiondescribed in United States Patent No. 619,222, granted tomeFebruary7,1899. Thestanchiondescribed in said patent was guided at itslower end and was adapted to be moved into the usual crib when the cowwas in the act of lying down or getting up, the stanchion having thismovement when the cow is on herknees. In practice this movement, due tothe contact of the shoulders of the cow with the stanchion, isconsiderable, and the extent of,

this movement in order that it might be suited to any cow, andconsequently to all cows, required the extension into the crib-space ofa slotted plate which made it difficult to clear the crib, and, further,the cow would not get at the food under the projection and the foodaccumulated and became sour, which was very detrimental. The use oftheslotted plate unduly limited the movement which could be given to thelower end of the stanchion. To obviate this difficulty and increase theextent of movement of the lower end of the stanchion and yet not in anyway contract the crib-space, I have devised for the first time known tome a series of links interposed between the lower end of the stanchionand the bottom timber, which besides allowing this movement also guidesthe stanchion in its movement, and when the cow is standing the linkslie without the crib, In

practice I have found usually that the lumher used in stanchions (hardwood) as it becomes thoroughly seasoned in use twists, and when theloose pivot-bar of the stanchion, which, to the best of my knowledge,has always presented a quadrilateral shape in cross-section, twists iteffects the proper operation of the devices employed to hold said bar inits operative or closed position, this being so because one end of oneof the links in looking and unlocking the movable bar of r thestanchion. 'lo obviate this trouble,which in practice is serious, Ihave-rounded the upper end of the bar, which moves in the barguidingloop, and have attached the link at one end to said rounded part,preferably at the part of the bar of greatest thickness, thus furnishinga sort of yielding connection,and I have curved the link and its mate intwo directions, as shown, which locates the pivot uniting the link withthe bar when the bar is closed in a Vertical planebetween the pivotconnecting the said link and its mating link or lever and the fulcraofsaid mating link or lever, or, in other words, the point of connectionof the link with the upper end of the bar is at the rear of a line drawnfrom the point of connection of said link with its longer mate and theconnection of said longer mate with the stanchion. outer end of themetallic loop constituting the bar-guide has presented a semicircularend; but herein the outer end of said loop is substantially square andpresents two substantially right-angled corners. I have found inpractice in using this round-ended loop that should a cow instead ofentering the Heretofore the proper space of the stanchion attempt to get7 her head between the stationarybar of the stanchion and the adjoiningupright timber that the pressure exerted by the cow on the stationarybar of the stanchion would impart such movement to the entire stanchionthat the movable bar located in the outer end of the loop and supposedto engage the holding" ency whatever to move the loose bar out of itsholder. In the patent referred to the cow in lying down acted upon alever which lifted a pin out of the slot of the bar used to guide thelower end of the slot inthe plate used as the guide for the lower end ofthe stanchion.

Herein I have devised a tripping device which is connected with thelower end of the stanchion, said tripping device consisting of a pinloosely connected with one of the links hereinbefore referred to, sothat when said pin is lifted the link will be raised above a suitablestop on the bed-plate. The cow in lying down acts against a lever ofthis tripping device and turns a second lever actuat inga third leverconnected with the pin. The weight of the pin and bar is sufficient toenable the pin and link to descend to engage the stop whenever the cowstands on her feet, so as to lock the stanchion in its proper operativeposition.

The holderof the movable bar has a suitable notch in which said bar mayenter, and there is an incline leading up to the notch to thus cause aslight inward movement of the bar as it comes into holding position inthe holder.

Figure 1 shows the stanchion open, viewing the same from the rear floorwhere the cow will stand. Fig. 2 is an enlarged detail showing the lowerend of the stanchion with the pin connecting the stanchion with thelink. Fig. 3 is a detail showing in section the end of the link and itslonger mating link united by a shouldered stud. Fig. 4 is a top viewofFig. 1. Fig. 5 is a detail below the dotted line 00, Fig. 1. Fig. 6 is adetail showing the end of the foot-iron turned into the stationary bar.

The bottom timber A and the top timber B are those commonly found inbarns for stabling cows, and at one side the timber A is the usual floorin which the cow stands, and at the opposite side of said timber is theusual crib in which is placed the food for the cows.

The timbers A and B are united by suitable uprights O, the uprights 0being separate to constitute a series of spaces, one for each cow. Inthese spaces are located the stanchion to be described.

The timber A has applied to it preferably a suitable iron plate, as a,said plate being connected by suitable nails or screws, as a, and saidplate in the present instance of my invention contains two headed studsa a and near the ends of said plate I have located a suitable stop, asa.

The timber B has connected with it a suitable stand I), provided at itsouter end with a; suitable bolt or pivot 12, which serves, as hereinillustrated, as a pivot for the upper end of the stanchion D, so thatthe stanchion may swivel freely to the movements of the neck of the cowin eating.

The lower end of the stanchion is provided at each side with suitablefoot-irons cl, said foot-irons being connected with the lower end of thestanchion by suitable rivets, as d. The

right-hand end of the two foot-irons dreceives a suitable pivot d uponwhich is mounted to turn the lower end of the movable bar D of thestanchion.

It will be noticed (see Figs. 1 and 6) that the end of the foot-ironoverlapping the lower end of the stationary bar of the stanchion is socut as to leave suitable prongs, as 2, and when these prongs are appliedto the stanchion the projecting pronged ends are struck by a suitablehammer or punch and turned inwardly into the lower end of the stationarybar of the stanchion, as represented in Fig. 7.

The upper end of the movable bar D of the stanchion is rounded at itsbroader faces, (see Figs. 1 and 4,) and said rounded end is eX tendedupwardly through a guiding-loop d having, as represented best in Fig. 4,substantially right-angled corners 61 instead of, as heretofore, roundedor curved corners. The upper ends of the guiding-loop d are secured tothe upper end of the stanchion by suitable rivets d of any desirednumber.

The stationary bar of the stanchion has a guiding-stud d, which entersloosely a slot 61 in the end of a link d the opposite end of said linkbeing connected by a suitable stud-screw d with the shorter end of amating link or lever e, mounted also preferably upon a like stud-screw e.eXtended from one side of the upper end of the stanchion. The oppositeend of the lever c has a suitable stud-screw (2 with which is joined oneend of a link 6 the op positc end of said link being connected with astud-screw c, said stud-screw entering the rounded portion of themovable bar substantially at its point of greatest thickness. shape ofone of these studs is shown clearly in Fig. 3.

By using a stud, especially when uniting the links 6 and d with the link6, it is possible to make a connection that will afiord freedom ofmovement of one part on the other without any tendency to bind, as wouldbe the case if a rivet were inserted and headed up at both ends, for thereason that the shank 3 of the stud may be headed and seat the shoulder4 of the stud upon, say, the link e without at all affecting the part ofthe stud which is surrounded by the link 6 The end of the link 6, hereincalled the mating link, which is pivoted to the link a is curved, asrepresented in Fig. 4, to present two curvatures, and the link a is alsocurved to present two like curvatures, and the end of said mating link,to which is connected the end of the link 6 occupies such a positionthat the pivot uniting the link a withthe upper end of the bar D is atthe rear of the line drawn from the point of connection of said link 6with its longer mate e and the connection of said longer mating link ewith the stanchion.

Rounding the face of the stanchion, with which the end of the link 6 isjoined, enables the movable bar of the stanchion to twist somewhat, asit most always does in drying The and seasoning, without affecting theproper operation of the mat-ing link or lever and link e and anypressure on the loose bar of the stanchion when closed tends to bringthe link and its longer mate together instead of apart, as would be thecase if the links were left straight,.and by curving the mating link orlever and the connected link e enables the pivot 6 when the stanchion isclosed to be located at the rear of a straight line drawn to intersectthe center of the joint made by the pivot e and the part of the pivot c,on which said mating link or lever e turns, such location of said pivotresulting in forcing the link 6 firmly against the inner side of themating link or lever instead of away from it when pressure is applied tothe loose bar. This construction adds greatly to the strength of thelevers without any increase of weight in material.

The stanchion near its lower end has pivoted upon it at 6 the upper endof a shoulderleverf, jointed at its lower end at f and having itsshorter arm provided with a suitable hole in which is entered looselythe end of a lever f havinga fulcrum at f in which the lever may bothtip and slide. The opposite end of the lever f enters loosely a suitablestud f, placed loosely in a suitable hole in the lower bar (V of thestanchion. The lower end of the stud f has a head '7, (see Fig. 1,) andsaid stud is passed upwardly through a suitable hole in the link and thesmall end of the stud is then passed through a suitable hole in the bard, and thereafter the lever f is connected with the stud. One end of thelink g surrounds loosely the headed stud a and the other end of the linkis jointed by a suitable pin 8 with one end ofa slotted link g, the slotof said link embracing and sliding on the headed stud a WVhen the cow isstanding on the floor with her head in the stanchion, the lower end ofthe lever f is turned outwardly by the weight of the stud 5 f and theconnected links, and at such time the link g meets the end of the stop aand prevents its sliding transversely of the timber A of the stanchion.WVhen, however, the cow gets onto her knees, the shoulder of the cowmeeting the lever f, acting through the levers f and f lifts the stud fand with it the link g, so that said link is lifted sufficiently abovethe stop a to let the lower end of the stanchion swing inwardly, thelinks 9 and g by such movement occupying the dotted-line position, Fig.5. The slot 10 in the end of the link g, cooperating with the stud alimits the extent of backward and forwardmovement of the stanchion.

Referring to Fig. 1, the movable bar of the stanchion is open, ready fora cow to put her head between the vertical upright bar and the movablebar, and thereafter the attend ant by moving the loose bar to its closedposition operates to move the link 6 and its longer mate into theposition shown by dotted lines in Fig. 1, when the slotted end of.

bar (1 falls, and its notch catches on screw (Z and the stanchion islocked.

\Vhen the movable bar of the stanchion occupies the dotted-lineposition, Fig. 1, the link e falls immediately behind the end of themating link 6.

The upright O has connected with it asuitable holding device it,(represented as a piece of metal bent to form a recess to present anincline h,) against which the inner side of the movable bar may strikeas the stanchion is being turned from the dotted-line position, Fig. 4,into the full-line position, same figure.-

By making the end of the guide-loops e substantially square instead ofrounded, as heretofore, should a cow instead of entering the properspace of the stanchion attempt to get her head between the stationarybar thereof and the adjoining upright G the pressure exerted by the cowon the stationary bar tends to force the stationary bar farther into theholder rather than to disengage the bar from the holder, as when theround-ended guide-loop is employed.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-- 1. The combination with a suspended stanchionhaving a movable bar, of a link connecting the lower end of saidstanchion with a fixed part of the barn structure.

2. A stanchion, a link connecting itslower end with a fixed part of thebarn structure,

and asecondary link atfordinga limiting-stop for the stanchion in itsextreme position.

3. A stanchion, a stop on the fixed partof the barn structure,a linkconnecting the lower end of said stanchion with said fixed part,andmeans carried by the stanchion and under the control of the cow tolift thelink and permit the lower end of the stanchion to slide forwardas the cow is lying down or getting up.

4. The combination with a stanchion having in its lower end aslidingpin, of a link connecting said pin with a fixed part of the barnstructure, a plurality of levers for lifting said pin and a suitablestop for said link.

5. A stanchion having at its upper enda pivoted bar-guiding loop havingitsouter end made substantially square, and a stationary holder toreceive the upper end of the bar.

6. A pivoted stanchion having a loose bar rounded at its upper end,combinedwith a bar rounded at its upper end, combined with a link curvedin two directions and connected at one end with the upper end of saidbar, and at its opposite end with a curved end of a matinglink or leverpivotally mounted upon the head of the stanchion.

8. A pivoted stanchion having a movable bar rounded at its upper end,combined with a link curved in two directions andconnected bar being atthe rear of a line drawn from the point of connection of said link withits longer mating link or lever and the connection of said longer matinglink or lever with the stanchion.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

EDWIN PRESCOTT.

Witnesses:

MARGARET A. DUNN, HEATH SUTHERLAND.

